Lee Chang Yung Chemical Industry Corporation

Chinese Petroleum Corporation

Mei-Yuan Chang

Man-Yin Lo

Wen-Chyi Lin

Kindtoken Hwaider Liu

A catalyst and a process for preparing carboxylic acid esters from an aldehyde and an alcohol in the presence of molecular oxygen are disclosed. The catalyst comprises metals supported on a silica-containing support, wherein the metals consist essentially of palladium, lead, an alkali or alkaline earth metal, and at least one of niobium and zirconium. The process for preparing a carboxylic acid ester comprises reacting an aldehyde with an alcohol in the presence of molecular oxygen and the aforementioned catalyst.

Catalyst and process for preparing carboxylic acid esters

The present invention is provided a method of a high stability selectable hydrogenate catalyst producing and using for MCHD manufacturing. The present invention comprised a preparing procedure for Ru/Al O catalyst includingan activity raising procedure for said catalyst including and a DMCHD manufacturing process which said high stability catalyst is used for a selectable hydrogenating reaction.

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Hsinchu, Taiwan

Mei-Yuan Chang